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My Community Explorer is now available. Explore select demographic, business, and resilience data to help identify potentially underserved communities.

Census Data API Discovery Tool

The Census Data API Discovery Tool provides a machine-readable dataset discovery service and is available in three formats:


The content of api.census.gov/data.json is based largely on the Open Project Data Common Core Metadata Schema and is extended to include metadata specific to Census Bureau datasets. The api.census.gov/data.xml URI may be used to access the same information as XML.

In addition to the above URIs dataset discovery is available for the entire vintage/dataset hierarchy as well. For example, the following URIs may be used to discover all datasets within the 2010 vintage:


The Open Project Data Common Core Metadata Schema documentation is a good starting point for understanding the fields output by the discovery service.

Happy discovering!

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